30221221222201 has 16 divisors (see below), whose sum is σ = 30683027349648. Its totient is φ = 29762648064000.

The previous prime is 30221221222193. The next prime is 30221221222219. The reversal of 30221221222201 is 10222212212203.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 4753049662201 + 25468171560000 = 2180149^2 + 5046600^2 .

It is a cyclic number.

It is not a de Polignac number, because 30221221222201 - 2³ = 30221221222193 is a prime.

It is a super-2 number, since 2×30221221222201² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30221221222261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138700795 + ... + 138918511.

It is an arithmetic number, because the mean of its divisors is an integer number (1917689209353).

Almost surely, 2^{30221221222201} is an apocalyptic number.

It is an amenable number.

30221221222201 is a deficient number, since it is larger than the sum of its proper divisors (461806127447).

30221221222201 is a wasteful number, since it uses less digits than its factorization.

30221221222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225132.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 30221221222201 its reverse (10222212212203), we get a palindrome (40443433434404).

The spelling of 30221221222201 in words is "thirty trillion, two hundred twenty-one billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred one".